Tao Xu

This work investigates the finite-time control problem for a nonlinear four-tank cross-coupled liquid level system by the port-controlled Hamiltonian model. A fixed-free methodology is exhibited which can be used to simplify the controller design procedure. To get an adjustable convergent gain of the finite-time control, a feasible technique named damping normalization is proposed. A novel parameter autotuning algorithm is given to clarify the principle of choosing parameters of the PCH method. Furthermore, a finite-time controller is designed by a state-error desired Hamiltonian function, and the relationship between the settling time and a parameter is given, which can be applied in practical engineering easily to adjust the settling time according to the industrial need. Finally, simulation and experimental results verify the effectiveness of the proposed algorithm.

Free will problem as a Western tradition of philosophy of mind in question has been widespread concern in philosophy and a high degree of attention. Medieval scholasticism and the systematic character Thomas. Aquinas is the will of Western liberal base of one of the pioneers and Yin. His contribution lies not only on the free will of the state of the Ming and the concept of free will by the detailed analysis, but also in his discussion of free will and rational introduction of the emotional desire to desire, necessity and chance, human behavior and human behavior and a series of areas. Although it was his doctrine of free will a wide range of criticism and censure, but he was through the use of these areas of research in the free will of the dominant and non-determinism determinism to reconcile, no doubt for us to solve the traditional free will to provide a way of thinking, but also for understanding the behavior of our picture of the structure provides a new paradigm

© 2014 American Chemical Society.Attempts to apply artificial nano/micromotors for diverse biomedical applications have inspired a variety of strategies for designing motors with diverse propulsion mechanisms and functions. However, existing artificial motors are made exclusively of synthetic materials, which are subject to serious immune attack and clearance upon entering the bloodstream. Herein we report an elegant approach that turns natural red blood cells into functional micromotors with the aid of ultrasound propulsion and magnetic guidance. Iron oxide nanoparticles are loaded into the RBCs, where their asymmetric distribution within the cells results in a net magnetization, thus enabling magnetic alignment and guidance under acoustic propulsion. The RBC motors display efficient guided and prolonged propulsion in various biological fluids, including undiluted whole blood. The stability and functionality of the RBC motors, as well as the tolerability of regular RBCs to the ultrasound operation, are carefully examined. Since the RBC motors preserve the biological and structural features of regular RBCs, these motors possess a wide range of antigenic, transport, and mechanical properties that common synthetic motors cannot achieve and thus hold considerable promise for a number of practical biomedical uses.

• Thomas Aquinas to explore "how to understand their reason," the process involves not only the "how to become a thinking my thoughts," the problem, and on the "rational ability to understand nature through their own" and "how rational its activities to understand their own "issues such valuable ideas. Although these ideas have not yet fully developed, but they are in many ways contributed to the modern Western philosophy of "self" concept and "self-knowledge" studies of the formation. In discussing "how intellect knows itself", Thomas Aquinas not only touches upon the problem of "how does a thought become my own thought", but also offers many valuable insights on a series of problems such as "can intellect know itself through its essence "and" how does intellect know itself through its activity ". Although these ideas have not really been elaborated on, there is no doubt that they have helped foster the formation of the concepts of" self "and" self-knowledge "in modem Western philosophy

For the medieval philosophy can be legally called a "Christian philosophy", researchers have historically had numerous arguments, but has not yet reached a conclusion. In this debate, one of the most critical and most difficult problem is: the philosophy of this period and the link between Christianity gives them a positive content. From this point of view, we found a master of philosophy in the Middle Ages, Thomas Aquinas • Aquinas's system of thought, faith and reason are not two distinct ways of thinking, theology and philosophy were not two unprincipled blending together the theoretical system, but the mutual penetration and interaction of the two, is intrinsically interlinked elements. That whether the medieval philosophy can be reasonably regarded as a kind of "Christian Philosohpy" still remains a problem to its researchers. And in their disputes about this problem, the most important and difficult issue is that whether the relation between medieval philosophy and Christianity had produced any positive effects. Viewed from this angle, we find that in the theory of Thomas Aquinas, a representative figure of medieval philosophy, belief and reason are two interrelated and interpenetrated constituent elements, which are connected with each other intrinsically and necessarily, rather than two independent systems that were mixed together occasionally and unnecessarily

Karl Rahner's theological anthropology • is in the mainstream of Christian thought from God-and toward a humanistic background, drawing on Kant's transcendental method and Heidegger's analysis of the traditional philosophy of God, especially for those who圣多瑪斯theory and St. Ignatius of mysticism to transform the results. And compared to the traditional Christian philosophy, as a basis for theological anthropology that is not closed forms of metaphysical belief in the external reflection, but rather as a belief in the transcendent nature of human subjects of inquiry, its focus is human to listen to Word of the possibility or transcendental conditions. In the age when Christian mainstream Thoughts are turning from God-oriented to human-oriented, Karl Rahner's theological anthropology transforms St. Thomas's anthropology, Ignazio's mysticism, and other traditional theological philosophical theories with reference to Kant's transcendental method and Heidegger's existential analysis. In comparison with traditional Christian Philosophy, his anthropology as foundational theology is not a metaphysical reflection on the external forms of Christian belief but an inquire for the transcendental human nature as the real subject of Christian belief, and the focal point of it is the possibility or transcendental conditions for human to listen the Holy Word